I don't think there is one, because it is a term used for distinguishing an uncommon condition from an almost universal one. It's kind of like asking: "What is the opposite of a twin?" Non-twin? There's no polar opposite.

But I've often wondered why there's not an adjectival form of celebrity. How about: "sell-ah-BRI-tik" ?

Disclaimer: Wordsmith.org is not responsible for views expressed on this site.
Use of this forum is at your own risk and liability - you agree to
hold Wordsmith.org and its associates harmless as a condition of using it.